Yi Yuan Ti is one of the core concepts of Zhineng Qigong Theory, in a typically "Chinese" way, it both explains what it is, and then says "Don't try to figure this out with your conscious mind, in the state that it's currently in!" 

We look at Exceptional Capabilities, New World Thinking, Reference Framework, Ego and the such-like.. 

Hopefully in an easy to fathom way! 

Also we Meditate and try to experience the consciousness of ourselves and everything!